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| 型号： | TPS61140DRCT |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 1.26 A SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封装： | 3 X 3 MM, GREEN, PLASTIC, QFN-10 |
| 文件页数： | 10/25页 |
| 文件大小： | 776K |
| 代理商： | TPS61140DRCT |
www.ti.com
LAYOUT CONSIDERATION
SLVS624B – JANUARY 2006 – REVISED MARCH 2007
Table 4. Recommended Input and Output Capacitors
Capacitance (
F)
Voltage (V)
Case
TDK
C3216X5R1E475K
4.7
25
1206
C2012X5R1E105K
1
25
805
C1005X5R0J105K
1
6.3
402
Murata
GRM319R61E475KA12D
4.7
25
1206
GRM216R61E105KA12D
1
25
805
GRM155R60J105KE19D
1
6.3
402
As for all switching power supplies, especially those providing high current and using high switching frequencies,
layout is an important design step. If layout is not carefully done, the regulator could show instability as well as
EMI problems. Therefore, use wide and short traces for high current paths. The input capacitor needs not only to
be close to the Vin pin, but also to the GND pin in order to reduce the input ripple seen by the IC. The Vin and
SW pins are conveniently located on the edges of the IC, therefore the inductor can be placed close to the IC.
The output capacitor needs to be placed near the load to minimize ripple and maximize transient performance.
It is also beneficial to have the ground of the output capacitor close to the GND pin since there will be large
ground return current flowing between them. When laying out signal ground, it is recommended to use short
traces separated from power ground traces, and connect them together at a single point.
18
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相关代理商/技术参数 |
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|---|---|
| TPS61140DRCT | 制造商:Texas Instruments 功能描述:IC LED DRVR WT/OLED BCKLT 10-SON 制造商:Texas Instruments 功能描述:IC, LED DRVR WT/OLED BCKLT 10-SON |
| TPS61140DRCTG4 | 功能描述:LED照明驱动器 Dual 700mA Switch 1.2MHz Boost Cnvrtr RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| TPS61140EVM-157 | 功能描述:电源管理IC开发工具 TPS61140-157 Eval Mod RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| TPS61141 | 制造商:TI 制造商全称:Texas Instruments 功能描述:DUAL OUTPUT BOOST REGULATOR USING SINGLE INDUCTOR |
| TPS61141DRCR | 功能描述:LED照明驱动器 Dual 700mA Switch 1.2MHz Boost Cnvrtr RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
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